The filter bags are the key elements which determine the dust collecting efficiency and working temperature

filters are air filters that remove particles from the air by forcing air through screens with microscopic pores. This makes them highly effective at reducing the number of allergens and asthma triggers (e.g., dust, pollen, mold, dander, tobacco smoke) in an enclosed space. Originally designed for industrial, medical and military use, HEPA filters are now being used to clean the air in individual homes and offices.